αἰγιαλός, -οῦ, ὁ (on the derivation, see Boisacq, see word), [in LXX: Jdg.5:17 (חוֹף), Sir.24:14 * ;] the sea-shore, beach (cf. Field, Notes, 146; DCG, i, 175 f.; MM, VGT, see word): Refs Mat.13:2,48 Jhn.21:4, Act.21:5 27:39,40.† (AS)
Thayer:
1) the shore of the sea, the beach
αἰγιαλός
aigialos
ahee-ghee-al-os'
From ἀΐσσω aissō (to rush) and G251 (in the sense of the sea); a beach (on which the wavesdash)